40220-08-4Relevant articles and documents
A three-(2 - hydroxyethyl) isocyanuric acid and acrylic acid ester mixture preparation method
-
Paragraph 0108-0118, (2017/04/29)
The invention discloses a preparation method of a tri(2-ethoxy) isocyanurate acrylate mixture and belongs to the chemical engineering field. The method comprises the following steps: adding a reaction material into a reactor and uniformly mixing; heating a reaction system to 80-100 DEG C and maintaining for 4-8 hours, after reaction, cooling and washing, then standing for layering, and taking an upper organic phase; adding a polymerization inhibitor into the organic phase and decompressing and distilling to remove a solvent in the organic phase; and pressurizing and filtering the organic phase to obtain the tri(2-ethoxy) isocyanurate acrylate mixture. According to the preparation method disclosed by the invention, the reaction temperature is 80-100 DEG C, and impurities in the reaction system are removed by washing for 3-5 times; the solvent is separated from the reaction system by decompression and distillation, and pressurization and filtration are carried out to obtain a pure mixture. The mixture is simple in preparation step, relatively low in cost and can be industrially produced on a large scale; meanwhile, the proportion of tri(2-ethoxy) isocyanurate diacrylate and tri(2-ethoxy) isocyanurate triacrylate can be tracked, and the reaction is finished in any proportion to obtain mixtures with different chemical properties.
New selective syntheses of (Meth)acrylic monomers: Isocyanates, isocyanurates, carbamates and ureas derivatives
Dubosclard-Gottardi, Christine,Caubere, Paul,Fort, Yves
, p. 2561 - 2572 (2007/10/02)
The selective formulation of ω-isocyanatoalkyl (meth)acrylates may be conveniently obtained by simple condensation of potassium cyanate with ω-halogeno-alkyl (meth)acrylates under appropriated phase transfer catalytic conditions. Depending on the reaction media and the temperature, these isocyanate derivatives may be isolated, trimerized to the corresponding isocyanurates or trapped in situ as carbamates or ureas compounds.
